1 . Heads or Tails?
Careful: It’s not 50-50
The phrase “coin toss” is a classic synonym for randomness. But since the 18th century, mathematicians have
František Bartoš, currently a Ph.D. candidate studying the research methods of psychology at the University of Amsterdam, became interested in this
With one side initially upward, the flipped coin landed with the same side facing
The leading theory explaining the
For day-to-day decisions, coin tosses are as good as random because a 1 percent bias isn’t
It isn’t difficult to prevent this bias from influencing your coin-toss matches; simply
A.confirmed | B.denied | C.recorded | D.suspected |
A.therefore | B.however | C.for example | D.vice versa |
A.nightmare | B.context | C.intervention | D.delay |
A.coinage | B.discipline | C.challenge | D.phrase |
A.cooperate with | B.round up | C.shrug aside | D.count on |
A.analysis | B.race | C.interview | D.session |
A.upward | B.evenly | C.downward | D.uniformly |
A.volunteers | B.gamblers | C.psychologists | D.statisticians |
A.accidental | B.dominant | C.subtle | D.prejudiced |
A.mechanics | B.relativity | C.geometry | D.chemistry |
A.moreover | B.instead | C.likewise | D.initially |
A.insignificant | B.accessible | C.inclusive | D.perceptible |
A.reversing | B.integrating with | C.backing up | D.rejecting |
A.concealing | B.shifting | C.perceiving | D.anchoring |
A.favourable to | B.opposed to | C.unaware of | D.suspicious of |
2 . Facing AI extinction
In a recent White House press conference, press secretary Karine Jean-Pierre couldn’t suppress her laughter at the question: Is it “crazy” to worry that “literally everyone on Earth will die” due to artificial intelligence?
While AI pioneer such as Alan Turing cautioned that we should expect “machines to take control”, many contemporary researchers
Before the deep-learning revolution in 2012, I didn’t think human-level AI would emerge in my lifetime. I was familiar with arguments that AI systems would insatiably seek power and resist shutdown — and obvious
Yet after 10 years in the field, I believe the main reasons are actually cultural and historical. By 2012, after several hype cycles that didn’t pan out, most AI researchers had stopped asking ‘what if we succeed at replicating human intelligence’,
When concerns resurfaced outside their community, researchers were to quick to dismiss outsiders as
One basic argument is by analogy: humans’
But wouldn’t it be humans wielding AIs as tools who end up in control? Not necessarily. Many people might choose to deploy a system with a 99 per cent chance of making them phenomenally rich and powerful, even if it had a 1 per cent chance of
Because no safe experiment can definitively tell us whether an AI system will actually kill everyone, such concerns are often dismissed as unscientific. But this isn’t an excuse for ignoring the risk. It just means society needs to reason about it in the same way as other complex social issues. Researchers also emphasize the difficulty of predicting when AI might
Attitudes are changing, but not quickly enough. AI x-risk is admittedly more
Big tech sponsors AI ethics research when it doesn’t hurt the bottom line. But it is also lobbying to exclude general-purpose AI from E. U. regulation. Concerned researchers recently called for a(n)
This brings us to the ugliest reason researchers may dismiss AI x-risk: funding. Essentially every researcher (myself included) has received funding from big tech. At some point, society may stop believing reassurances from people with such strong conflicts of
A.Comfortingly | B.Unfortunately | C.Accidentally | D.Luckily |
A.express | B.feel | C.downplay | D.highlight |
A.threat | B.boost | C.disgrace | D.contribution |
A.extinction | B.health | C.resource | D.exposure |
A.abandoning | B.cherishing | C.frustrating | D.narrowing |
A.arrogant | B.irresponsible | C.ignorant | D.biased |
A.cognitive | B.physical | C.linguistic | D.emotional |
A.deliberately | B.abstractly | C.frequently | D.fundamentally |
A.tightening | B.exercising | C.maintaining | D.escaping |
A.assist | B.surpass | C.collect | D.evaluate |
A.obvious | B.urgent | C.questionable | D.private |
A.legal | B.financial | C.professional | D.ethical |
A.investment | B.pause | C.research | D.initiative |
A.take place | B.grow up | C.sink in | D.go away |
A.interest | B.religion | C.taste | D.law |
3 . To prevent tsunami-caused disasters, several countries worked together to expand the use of a tsunami-detecting system that had been developed in the United States by the National Oceanic and Atmospheric Administration (NOAA). The system
By 2004 only six such detectors had been installed, all in the Pacific. There were
There are now 53 detector buoys operating in the world’s oceans, including 6 of a planned 27 in the Indian Ocean. So a (n)
In March, the system, which is run by the Japan Meteorological Agency (JMA), did not work perfectly. JMA’s initial
A.approves | B.rids | C.expects | D.consists |
A.broadcasts | B.foresees | C.assigns | D.imposes |
A.some | B.a few | C.none | D.others |
A.qualified | B.alerted | C.substituted | D.fueled |
A.although | B.until | C.as | D.where |
A.difficult | B.thoughtful | C.easy | D.pressing |
A.alternative | B.perspective | C.repetition | D.resume |
A.surprise | B.mistake | C.accident | D.force |
A.reference | B.confirmation | C.suggestion | D.expectation |
A.undertake | B.multiply | C.deposit | D.blanket |
A.location | B.direction | C.territory | D.length |
A.note | B.catalogue | C.volume | D.estimate |
A.worse | B.larger | C.higher | D.wider |
A.schedule | B.scheme | C.monitor | D.response |
A.warning | B.security | C.setting | D.responsibility |
4 . When it came to moral reasoning, we like to think our views on right and wrong are rational. But ultimately they are grounded in emotion. Philosophers have argued over this claim for a quarter of a millennium without
Harvard psychologist Joshua Greene does brainscans of people as they study the so-called trolley problem. Suppose a trolley is rolling down the track toward five people who will die unless you pull a lever (杠杆) that pushes it onto another track where,
But suppose the only way to save the five people is to push someone else onto the track — a bystander whose body will bring the trolley to a stop before it hits the others. It’s still a one-for-five
Princeton philosopher Peter Singer argues that we should
A.comprehension | B.hesitation | C.resolution | D.permission |
A.reliable | B.invisible | C.impressive | D.decisive |
A.unfortunately | B.obviously | C.surprisingly | D.inevitably |
A.regretting | B.minimizing | C.justifying | D.estimating |
A.struggle | B.deal | C.loss | D.mistake |
A.Likewise | B.However | C.Therefore | D.Moreover |
A.memory | B.reason | C.emotion | D.sensory |
A.enduring | B.obvious | C.acceptable | D.intense |
A.compete for | B.come from | C.take over | D.engage in |
A.self-reflecting | B.decision-making | C.problem-solving | D.attention-calling |
A.innocents | B.hostages | C.relatives | D.soldiers |
A.trust | B.apply | C.examine | D.ignore |
A.superior | B.stubborn | C.caring | D.selfish |
A.willingly | B.collectively | C.deliberately | D.cheaply |
A.master | B.advocate | C.slave | D.protester |
5 . If at first you don’t succeed, as the old saying goes, try, try again. Good advice, up to a point. But let me offer a
Consider the advice for job interviews in Talent, a new book by economist Tyler Cowen and venture capitalist Daniel Gross. They suggest asking a(n)
Indeed, one way to describe this tactic is that the interviewer is asking for answers in
While that approach is
A striking example of parallel design is the creation of the Windows 95 startup sound. Microsoft was looking for an opportunity to
Eno recalls receiving a brief, asking for music that was “inspirational, sexy, driving, provocative, nostalgic... there were about 150
Eno describes himself as being “completely bereft of ideas” at the time. He found the brief both hilarious and inspiring. In the end he
Bill Burnett and Dave Evans, in their delightful book Designing Your Life, suggest an exercise in which you sketch out a vision for the next five years of your life. What will you be doing? Where will you live and with whom? Are you hoping to run a marathon? Start a business? Write a novel?
This is often a straightforward act of
I’ve tried this myself and seen others try it. People squirm. They protest. Sometimes they cry. And then, sooner or later, the ideas start pouring out.
We all contain
A.suggestion | B.promotion | C.recommendation | D.modification |
A.routine | B.academic | C.personal | D.controversial |
A.presented | B.exhausted | C.challenged | D.accepted |
A.style | B.parallel | C.detail | D.privacy |
A.fundamental | B.flexible | C.unconventional | D.practical |
A.distinct | B.determined | C.deliberate | D.vain |
A.dismiss | B.restrict | C.explore | D.overlook |
A.inevitably | B.accidentally | C.theoretically | D.eventually |
A.scale up | B.figure out | C.experiment on | D.show off |
A.adjectives | B.statements | C.variables | D.copyrights |
A.purchased | B.composed | C.performed | D.appreciated |
A.exhibited | B.created | C.broke | D.underestimated |
A.aggressiveness | B.imagination | C.wisdom | D.will |
A.dart | B.score | C.drawing | D.notice |
A.emotions | B.ambitions | C.desires | D.multitudes |
6 . During the initial stages of instructed L2 (the second language) acquisition students learn a couple thousand, mainly high frequency words. Functional language proficiency, however,
Acquisition of new words from authentic L2 reading texts by means of strategies such as contextual deduction (演绎) is also not a
Any suggestions on how to use this in educational contexts should be based on a systematic
A.inquires | B.requires | C.receives | D.inspires |
A.difficult | B.easy | C.possible | D.necessary |
A.copy | B.focus | C.find | D.clean |
A.however | B.moreover | C.because | D.nevertheless |
A.disturb | B.seem | C.occur | D.disappear |
A.solution | B.approach | C.problem | D.wonder |
A.official | B.annual | C.objective | D.alternative |
A.predicted | B.presented | C.postponed | D.preferred |
A.available | B.outstanding | C.attractive | D.evident |
A.by means of | B.moreover | C.in spite of | D.however |
A.focus | B.analysis | C.object | D.target |
A.describe | B.grasp | C.link | D.force |
A.conclusions | B.appointments | C.aspects | D.contents |
A.react | B.establish | C.memorize | D.leave |
A.enhanced | B.invented | C.contrasted | D.behaved |
7 . Founded in 1880, the journal Science nowadays continues to publish the very best in research across the sciences. It is
“Readers must have
Asked whether any particular papers had
Giovanni Parmigiani, a bio-statistician at the Harvard School of Public Health, a member of the SBoRE group, says he
Professional scientists are expected to know how to analyze data.
A.announcing | B.adding | C.promoting | D.advertising |
A.resulting from | B.putting forward | C.calling on | D.leading to |
A.confidence | B.motivation | C.suspicion | D.justice |
A.rejected | B.appointed | C.transported | D.blamed |
A.considerate | B.remote | C.outside | D.indirect |
A.gather | B.review | C.compare | D.qualify |
A.stimulated | B.revolutionized | C.judged | D.resisted |
A.fortunately | B.negatively | C.broadly | D.automatically |
A.evaluation | B.drive | C.fuel | D.trick |
A.permitted | B.forced | C.ordered | D.expected |
A.thoughtless | B.amusing | C.fresh | D.profitable |
A.model | B.record | C.donate | D.exchange |
A.Furthermore | B.Instead | C.However | D.Consequently |
A.deeper | B.tougher | C.farther | D.thinner |
A.remove | B.inform | C.adjust | D.identify |
8 . When it comes to black holes, we are caught between a rock and a hard place. In the 1970s, Stephen Hawking showed that all black holes give off thermal radiation(热辐射)and eventually evaporate(蒸发). In doing so, they seemed to be destroying information contained in the matter that fell into them, therefore going against a rule of quantum mechanics(量子力学): information cannot be created or destroyed.
Some argued that the outgoing “Hawking radiation” preserved the information. However, if this were the case, then given certain assumptions, the event horizon(视界)—— the black hole’s boundary of no return—— would become intensely energetic, forming a firewall. But such firewalls go against the theory of general relativity, which says that space-time near the event horizon should be smooth. The black hole firewall paradox was thus born.
Now, Sean Carroll at the California Institute of Technology and his colleagues have shown that the paradox disappears when the evolution of black holes is understood in the context of the many-worlds interpretation of quantum mechanics.
The quantum state of the universe is described by something called the global wave function(全局波函数). According to traditional quantum mechanics, whenever there are many possible outcomes for physical process, this wave function ”collapses“ to represent one outcome. But in the many-worlds Interpretation, the wave function doesn’t collapse-rather, it branches, with one branch for each outcome. The branches evolve independently of each other, as separate worlds.
In this way of thinking, the formation of a black hole and its evaporation due to Hawking radiation lead to multiple branches of the wave function. An observer monitoring a black hole also splits into multiple observers, one in each branch.
The new work shows that from the perspective of an observer in a given branch, space-time behaves as described by general relativity and the black hole has no firewall.
But does that imply loss of information? No, says team member Aidan Chatwin-Davies, also of Caltech. That is because the principle of preservation of information applies to the global wave function and not to its individual branches, he says. Information is preserved across all branches of the global wave function, but not necessarily in any one branch. Given this case, a black hole that doesn’t lose information and yet has a smooth, uneventful event horizon without a fire wall isn’t a contradiction.
Yasunori Nomura at the University of California at Berkeleyy has independently arrived at some similar conclusions in his work. He agrees that the many-worlds approach resolves the paradox around information loss from black holes. “Many worlds should be taken seriously,” he says.
1. Which word in the article is similar in meaning to the underlined word in Paragraph 2?A.Assumption (Paragraph 2) | B.Interpretation (Paragraph 4) |
C.Evaporation (Paragraph 5) | D.Contradiction (Paragraph 7) |
A.There is a firewall. | B.No observer will split. |
C.No information is lost. | D.The wave function collapses. |
A.introduce an independent scientist |
B.support the many-worlds interpretation |
C.question whether many worlds really exist |
D.argue against the information loss from black holes |
A.Rules of quantum mechanics. |
B.A new understanding of the black hole. |
C.Hawking’s interpretation of the black hole. |
D.The development of the global wave function. |
9 . Why working from anywhere isn’t realistic
For most white-collar workers, it used to be very simple. Home was the place you left to go to work. The office was almost certainly where you were
The pandemic has thrown these neat
Another set of obstacles is more
The option to work from anywhere will be most attractive to people who have well-paid jobs and fewer
Adding it to the menu of working options for sought-after employees
A.heading | B.resisting | C.worrying | D.navigating |
A.demanded | B.modified | C.defined | D.served |
A.programs | B.means | C.cases | D.categories |
A.solely | B.properly | C.responsibly | D.remotely |
A.However | B.Therefore | C.Instead | D.Besides |
A.isolated | B.unrestricted | C.sophisticated | D.distinguished |
A.principles | B.insights | C.barriers | D.arguments |
A.In other words | B.On the contrary | C.What’s more | D.After all |
A.compensation | B.enforcement | C.pressure | D.sympathy |
A.distinct | B.complicated | C.personal | D.unnoticeable |
A.realize | B.evade | C.vanish | D.make |
A.visions | B.descendants | C.perspectives | D.obligations |
A.jealousy | B.cooperation | C.fraud | D.interaction |
A.takes time | B.steals thunder | C.makes sense | D.works wonders |
A.review | B.blueprint | C.source | D.sacrifice |
10 . New Journalism, American literary movement in the 1960s and 70s, pushed the boundaries of traditional journalism and nonfiction writing. The genre combined journalistic research with the techniques of fiction writing in the reporting of stories about real-life events.
As in traditional investigative reporting, writers in the genre immersed (沉浸) themselves in their subjects, at times spending months in the field gathering facts through research, interviews, and observation. Their finished works were very different, however, from the feature stories typically published in newspapers and magazines of the time. Instead of employing traditional journalistic story structures and an institutional voice, they constructed well-developed characters, sustained dialogue, vivid scenes, and strong plotlines marked with dramatic tension.
Some observers praised the New Journalists for writing well-crafted, complex, and convincing stories that revitalized readers' interest in journalism and the topics covered, as well as inspiring other writers to join the profession.
A.Others firmly opposed the use of those techniques, arguing that any departure from facts, however minor, discredited a story and moved it away from journalism into the realm of fiction. |
B.They also wrote in voices that were distinctly their own. |
C.The New Journalists argued that objectivity does not guarantee truth and that so-called “objective” stories can be more misleading than stories told from a clearly presented personal point of view. |
D.The New Journalists expanded the definition of journalism and of legitimate (正统的) journalistic reporting and writing techniques. |
E.The New Journalists’ ideas continue to be explored and refined by new generations of reporters and editors. |
F.Others, however, worried that the New Journalism was replacing objectivity of with a dangerous subjectivity that threatened to undermine the credibility of all journalism. |